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Date: Tue, 16 Apr 2002 12:32:25 -0300 (BRT)
From: Rik van Riel <riel@conectiva.com.br>
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To: Mark Mielke <mark@mark.mielke.cc>
Cc: Terje Eggestad <terje.eggestad@scali.com>,
        linux-kernel <linux-kernel@vger.kernel.org>,
        Liam Girdwood <l_girdwood@bitwise.co.uk>,
        BALBIR SINGH <balbir.singh@wipro.com>,
        William Olaf Fraczyk <olaf@navi.pl>,
        Lee Irwin III <wli@holomorphy.com>
Subject: Re: Why HZ on i386 is 100 ?
In-Reply-To: <20020416093824.A4025@mark.mielke.cc>
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On Tue, 16 Apr 2002, Mark Mielke wrote:

> Increasing the HZ can only improve responsiveness, however, there is a
> cost (mentioned by others). The cost is that the scheduler is executed
> more often per second. If the scheduler does the same amount of work
> per tick, but there are more ticks per second, the scheduler does more
> work overall, and the CPU is free for use by the processes less.

Why are you discussing Linux 1.2 ?

Linux is not running the scheduler each cpu tick and hasn't
done this for years.

regards,

Rik
-- 
	http://www.linuxsymposium.org/2002/
"You're one of those condescending OLS attendants"
"Here's a nickle kid.  Go buy yourself a real t-shirt"

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